Avoid Exxposing a reference to the internal AGC, improve debug info

ambed/cagc.h

@@ -29,6 +29,7 @@
 #define cagc_h
 
 #include "main.h"
+#include "math.h"
 
 class CAGC
 {
@@ -38,10 +39,9 @@ public:
 
     //methods
     void Apply(uint8 * voice, int size);
-    float GetGain(){ return m_scale; }//gets current gain (linear)
+    float GetGain(){ return -20.0f*log10(m_g); }//gets current gain 
     
 private:
-    // gain variables
     float m_g;            // current gain value
     float m_scale;        // output scale value
 

ambed/cusb3xxxinterface.cpp

@@ -152,9 +152,7 @@ void CUsb3xxxInterface::Task(void)
             {
                 Queue = Channel->GetVoiceQueue();
                 CVoicePacket *clone = new CVoicePacket(VoicePacket);
-                CAGC agc = Channel->GetAGC();
-                agc.Apply(clone->GetVoice(), clone->GetVoiceSize());
-                std::cout << "Gain : " << agc.GetGain();
+                Channel->ApplyAGC(*clone);
                 //clone->ApplyGain(Channel->GetSpeechGain());
                 Queue->push(clone);
                 Channel->ReleaseVoiceQueue();

ambed/cvocodecchannel.cpp

@@ -92,6 +92,12 @@ uint8 CVocodecChannel::GetCodecOut(void) const
     return m_InterfaceOut->GetChannelCodec(m_iChannelOut);
 }
 
+void CVocodecChannel::ApplyAGC(CVoicePacket& voicePacket)
+{
+    m_AGC.Apply(voicePacket.GetVoice(), voicePacket.GetVoiceSize());
+    std::cout << "Gain : " << m_AGC.GetGain() << "\n";
+}
+
 ////////////////////////////////////////////////////////////////////////////////////////
 // queues helpers
 

ambed/cvocodecchannel.h

@@ -28,6 +28,7 @@
 
 #include "cpacketqueue.h"
 #include "cagc.h"
+#include "cvoicepacket.h"
 
 ////////////////////////////////////////////////////////////////////////////////////////
 // class
@@ -54,7 +55,9 @@ public:
     int   GetChannelIn(void) const          { return m_iChannelIn; }
     int   GetChannelOut(void) const         { return m_iChannelOut; }
     int   GetSpeechGain(void) const         { return m_iSpeechGain; }
-    CAGC& GetAGC()                          { return m_AGC; };
+    
+    //Processing
+    void ApplyAGC(CVoicePacket& voicePacket);
     
     // interfaces
     bool IsInterfaceIn(const CVocodecInterface *interface)      { return (interface == m_InterfaceIn); }